Worked on enhancing drawing production workflows in the iTwin/bis-schemas repository by introducing a new ViewAttachmentWithPlaceHolder entity and integrating dpex schema 1.0.1. Focused on improving data integrity and enabling placeholder-driven processes, the work involved schema design and data modeling using JSON and XML. Addressed validation issues related to the new relationships and updated schema inventories to reflect these changes. Upgraded the DrawingProductionExperimental workflow to support the new linkage, resulting in more reliable and consistent drawing production across environments. These efforts reduced manual linking, streamlined schema management, and prepared the system for future automation in drawing production processes.